fix: render stacked bar with stringified values #488
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The stacked bars are computed adding up the previous value with the current one. This works fine if the passed values are numbers. If the number is codified as a string, the resulting stacked value is a wrongly concatenated string of values. This commit cast every y value to a number, if NaN or null it will use null. fix elastic#487
Codecov Report
@@ Coverage Diff @@
## master #488 +/- ##
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+ Coverage 83.82% 83.85% +0.02%
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Files 158 169 +11
Lines 4724 4880 +156
Branches 961 981 +20
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+ Hits 3960 4092 +132
- Misses 749 772 +23
- Partials 15 16 +1
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## [15.0.5](elastic/elastic-charts@v15.0.4...v15.0.5) (2019-12-12) ### Bug Fixes * render stacked bar with stringified values ([opensearch-project#488](elastic/elastic-charts#488)) ([24b9351](elastic/elastic-charts@24b9351)), closes [opensearch-project#487](elastic/elastic-charts#487)
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Summary
In a stacked bar chart, the vertical position of each bar is computed starting from the sum of the vertical position of each previous bar. This works fine if, in the dataset, the y value is expressed as a number.
If the y value in the dataset is a string type, the chart is rendered in a weird way: the vertical position of each bar is wrongly computed as a concatenation of each y value. This PR cast every y value to a number, or to
nullif the y value is NaN ornull.It's not a good practice having a stringified number as the y value, but this gracefully render the chart also in this situation.
fix #487
Checklist
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strikethroughsto remove checklist items you don't feel are applicable to this PR.[ ] Any consumer-facing exports were added tosrc/index.ts(and stories only import from../srcexcept for test data & storybook)[ ] This was checked for cross-browser compatibility, including a check against IE11[ ] Proper documentation or storybook story was added for features that require explanation or tutorials